Improvement in rotary harrows



garant 'jlra CYRUS. P. FISHER, OF LEESVILLE, OHIO.

'Leners Param No. 90,652, melma 1, 1869.

IMPROVEMENT IN ROTARY HARRows.

To all whom it may concern Be it known that I, GYRUs P. FISHER, of Leesville, in the county of Carroll, and State of Ohio, have invented cert-aiu new and useful Improvements in Garriage-Mounted Revolving Hai-rows and do hereby declare that the following is'a full, clear, and exact description ofthe same, reference being had to the aecompanying drawings, and to the letters f reference marked thereon, which form a part of .this specification. Y

Figure l is a sectional side elevation.

Figure 2 is a sectional end view.

Figure 3 is a vertical section, through the headblock, with the rakes attached, and pinion-shaft.

Figure 4 is a cross-section, through the head, showing the rakes andpins for conning the rakes to the The nature of my invention consists in a progressive revolving and exible harrow attached to gearing, nd attached to a carriage with two wheels.

The harrow is adjustable by means of a lever, by which to raise or lower the same, at the will of the driver, as hereinafter set forth and described.

To enable others skilled in the art to make and use my invention, `I will describe its construction and op eration.

In the construction of my invention, I make a earriage of two wheels, and axle, tov which the wheels are firmly attached, and which shaft revolves with `the Wheels.

A A are the wheels.

B, .the axle. 4

c c, the frame, which is set ou the axle B, and secured by bearings, d d, as seedin fig. 2.

D, the bevel-gear wheel, attached to the axle B in such position as to allow the pinion vertical shaft to be in the centre of the wheels when the-pinionwheel E is geared into it.

F, pinion-shaft, passing down through the middle bar of` frame O and guard pr bearing c, and which bearingis firmly secured to the frame c, through which the pinion F passes.

G is a head-block, which may be cast, or use any v other material.

This block is made round and concave on both its sides, so as easily to pass over the earth or any obstructions in the way of the same.

This block has Vin it two, three, or more holes for the reception of the rake-heads or arms of the harrow H H.

These heads or arms are held in place by means of pins, a a., as seen in figs. 3 and 4, and the holes or sockets are vertically larger than the arms 0r heads; so that a vertical motion up or down may be given to them, when required, so as to avoid strain on the pinion-shaft when ham'owing over uneven ground.

The Schedule referred to in these Letters Patent and mak-ing part of the same.

b b b b, the barrow-teeth.

These teeth may be made of any shape best adapted to the purpose intended. I may .find a ltooth with a sharp edge, razor, or wedge-shape, may be the best for the outer` line of the teeth, as this shape will greatly aid in cutting the earth.

I, the seat.

M, the fulcrum of the lever, and is attached to the frame C.

J and L, the lever.

On the end of the lever-arm L is a fork, which tits around the pinion-shaft F, on the top of which is a burr, against which the arm of the lever K operates to .throw the pinion-wheel kout of gear and raise the harrow above the ground. v

, The red lines in iig. 2 show the harrow raised and out of gear, when desired to remove the same Without operating on the ground.

In the operation of my invention, when a team is attached'in the ordinary manner, the driver takes his seat in the seat I, and when he wishes to commence harrowing, the barrow is dropped into the ground, and in gearing, by means ofthe lever J.

As the team moves forward, the wheels revolve with the axle, the gear-wheel D operates on the pinionwheel E, on pinion-shaft F, which revolves, carrying the barrow in rapid revolutions, which number of revov lutions can be regulated as may be required,

This invention, it will be seen, will never require cross-harrowing, as at all times, inonce passing the carriage over the ground, the harrow always-operates from two to three or more times, according tov the number of revolutions made bythe barrow, but it will at any time revolve often enough to barrow the ground at least twice.

I make my harrow simply of arms, without a Vpim, so that if the teeth should strike against any ordinarysized object, the force of the barrow in revolvingwould throw it out atthe open spaces between the arms.

In hill-side grounds, it will beseen that my harrow does not leave furrows for the water to run in, as does the drag-barrow. This I regard as a great improvement in harrows.

Itwill be seen, that the rapid movement of the harrow will keep it clean, as the force will prevent the teeth from clogging or sticking.

I am aware that revolving harrows have been made to revolve by the resistance of the earth to its pro gress, but in this class of harrows, the ground is not doubly harrowed, and has to be cross-harrowed in order to cover the grain, butin my invention the ground is always at least doubly harrowed, andthe grain fully covered, by the carriage passing once over the ground.

I may tind it necessary to gear two harrows, tothe same carriage, in the samelymanner asodescribed. My invention is a .great labor-savingdmachine, as

the driver can always ride on the carriage, and have the control of the barrow at oonnnand by means of the level' J, and it dispenses with at least half the time in going over the ground, as once doinlgr so com` pletes'the preparation of the ground, perfectly covering the grain.

Having thus fully described my invention, in its construction and operation,

What I claim, and desire to secu-re by Letters Patent, is

1. The revolving flexible barrow, constructed substantially as described, and operating as and for the purposes set forth.

2. The combination of the revolving ilexible har- Witnesses:

T. G. CLAYTON, V' O. CLAYTON. 

